225065666 has 16 divisors (see below), whose sum is σ = 393107904. Its totient is φ = 94636464.

The previous prime is 225065653. The next prime is 225065671. The reversal of 225065666 is 666560522.

225065666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150920 + ... + 152403.

It is an arithmetic number, because the mean of its divisors is an integer number (24569244).

Almost surely, 2^225065666 is an apocalyptic number.

225065666 is a deficient number, since it is larger than the sum of its proper divisors (168042238).

225065666 is a wasteful number, since it uses less digits than its factorization.

225065666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303385.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 225065666 is about 15002.1887069854. The cubic root of 225065666 is about 608.2793632652.

The spelling of 225065666 in words is "two hundred twenty-five million, sixty-five thousand, six hundred sixty-six".